Souls, Love, Classic Movies, and Other Immortal Things (слэш)

James "Bucky" Barnes died that day on the train back in 1945. Steve knows this, because he found his body. So why, seventy years later, is he presented with a bodyguard that looks and acts exactly like his dead best friend? A bodyguard who just happens to be named James Barnes?
Bucky Barnes is assigned guard duty to a man whose identity he's not supposed to know. The thing is, this man looks exactly like Captain America. To make matters worse, he keeps having these dreams about him, dreams that are more like memories. Combine that with his childhood claim that he used to be called Bucky and "died in the war," well, things are seeming really odd.
What the hell is going on?